Which is better, a lithium manganate battery or a lithium iron phosphate battery?

Introduction Which is better, a lithium manganese oxide battery or a lithium iron phosphate battery? Both batteries are good. Lithium manganese oxide battery: The advantage is that it has high energy density and can provide long battery life, the cost is relatively lo

Which is better, a lithium manganate battery or a lithium iron phosphate battery?

Both batteries are good.

Lithium manganese oxide battery: The advantage is that it has high energy density and can provide long battery life; the cost is relatively low and the price is more affordable, the material is relatively; environmentally friendly and environmentally friendly Less affected.

Lithium iron phosphate battery: the advantage is that it has a long life and can withstand multiple charge and discharge cycles; it has good thermal stability and can maintain good performance under high temperature conditions; and can withstand overload. Or short circuit, etc., it is not easy to burn or explode.

What are the classifications of new energy vehicle batteries?

Advantages of lithium manganese batteries

1. High security

Lithium manganate has good performancesecurity gaps. According to the investigation, during actual acupuncture or short circuit experiments, it was found that a small number of samples burned, but there was not a single explosion incident in the overcharge experiments, a high voltage charge far exceeding its own discharge voltage. several times, then there was an explosion. In fact, after the overcharge reaction of lithium manganate, its safety has been greatly improved compared with other lithium batteries.

2. Long life

We all know that the life of so-called long-life lead-acid batteries can only reach about 300 times, with a maximum of 500 times. . The lithium manganate battery has a lifespan of more than 2,000 times. The lifespan of lead-acid batteries of the same quality is generally about 2-3 years, while the theoretical lifespan of lithium-manganate batteries will reach 7-8 years when used in thes same conditions.

3. Large capacity without memory effect

When the battery is often used under conditions where it is fully charged but not fully discharged, the capacity will quickly fall below the rated capacity value. . This phenomenon is called memory effect. Nickel metal hydride and nickel cadmium batteries have memory, but lithium manganate batteries do not have this phenomenon and the battery capacity will not be reduced. Regardless of the battery condition, it can be charged and used at any time. There is no need to unload it and then recharge it. The volume of a lithium manganese oxide battery with the same specifications and capacity is 2/3 that of a lead-acid battery, and its weight is 1/3 that of a lead-acid battery.

4. Green and environmentally friendly

Lithium manganate batteries are generally considered commerciale non-toxic and non-polluting because they do not contain any heavy metals or rare metals. The reason why lithium batteries are favored by the industry is mainly due to environmental protection considerations. As an important branch of lithium batteries, the environmental performance of lithium manganate is self-evident.

5. Good high temperature performance

It is understood that the thermal peak of lithium manganate can reach 350℃-500℃, while the thermal peak of some lithium batteries is only about 200℃. Therefore, lithium manganate has some advantages in high temperature performance!

Inevitably, lithium manganese batteries also have their own disadvantages: their low temperature performance is poor, and the preparation cost of lithium manganese materials and the manufacturing cost of batteries are relativelynt high.

Small size

New energy electric vehicle battery types are roughly classified intolead-acid batteriesand nickel. -metal hydride batteries, lithium manganate batteries, lithium iron phosphate batteries and ternary lithium batteries and other categories.

1. Lead-acid batteries

Lead-acid batteries have low cost, good low temperature resistance and high performance, low energy density, short and long service life; size and poor security. Due to their low energy density and short lifespan, electric vehicles used as a power source cannot have good speed and high cruising range, and are generally used for low-speed vehicles.

2. Nickel-metal hydride battery

Ni-MH battery has low cost, high technologymature ology, long life and low energy density, large volume, low voltage and battery memory effect; . Although their performance is better than lead-acid batteries, they contain heavy metals and pollute the environment when abandoned.

3. Lithium Manganate Battery

Lithium manganate battery is an inexpensive cathode material with good safety and low temperature performance. However, the material itself is not very stable and breaks down easily. to produce gas, so it is mainly used in combination with other materials to reduce the cost of battery cells. However, its service life decreases rapidly, is prone to swelling, has poor high temperature performance, and has a relatively short service life. It is mainly used in battery cells and large and medium power batteries.yenne size. Its nominal voltage is 3.7 V.

4. Lithium iron phosphate battery

Lithium iron phosphate battery has good thermal stability, good safety, low cost, long life, low energy density and is afraid of low temperatures. When the battery temperature is between 500 and 600°C, its internal chemical components begin to decompose and will not burn or explode due to puncture, short circuit, or temperature high, and have a longer lifespan. However, the vehicle's range is average and when the temperature is below -5°C, the charging efficiency is low, making it unsuitable for charging needs in the north in winter.

5. Ternary lithium battery

The ternary lithium-ion battery has high energy density, long service life, and is not afraid of low temperatures; The energy density can reachre the highest, but the high temperature resistance is relatively low. Pure electric vehicles with mileage requirements are the dominant direction, and they are suitable for northern weather conditions. The battery is more stable at low temperatures.

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